Rotary engine.



No. 868,841. PATENTED OCT. 22, 1907.

H. H. CALKINS.

RUTARY ENGINE.

APPLIUATION FILED JUNE 3,19?.

2 SHEETS-SHEET 1.

- No@ 968,841. PATENTD 00T. 22, 1907.

A H. H. GALKINS.

ROTARY ENGINE.

AP'PLITION FILED JUNE 3,1907.

2 SHEETS-SHEET Z.

. Be it knoyvnfthet. I, Homan HfCALKrNs, a citizen of -the United Statesresiding at Bloomfield, in the county "of Greene and State oi Indiana, have.invented certainnewand usefu'l Improvements' in ARotaryEngines1 of :which the following is a specification.

he present invention. relates to certain new 'and useful improvements Vin that type otrotary engines embody a revolving' drum provided with sliding 10 piste-nsorf alvutments against which the steam or other fluid medium expands.- i

vnginef this characterwhich is simple in its construcnon and win utilize the force of the' steam tothe fullest possibleextentn A The invention alsojaimsto provide for reversing thel 'direction' of 'mot ionA ojthefergine through the medium of a novel valve mechanism.'- f. 3 l. F a ull'deseription'of the. invention and the-merits traction' and the means for effectingthe result,

'for emanan@ioacquifeskuowledgeofmtdetailsof `feinence.istobe had to the following' description and .accompanying"drawings1 .in which;

fF-igiie y1 is a transverse lsectional view through a rof `err'ibodying'the invention. Fig. 2 is an end ja portion'of the casing beingremoved. Fig. 3 is za similar view with the valve member and a portion of 'the casing removed. Fig. 4 is a transverse segmental 4view' through' the valve chest. Fig. 5 is a longitudinal sectional view thrugh the'npper portion ofthe engine.

. Lf yCorresponding and like parts are referred to in the following description and indicated in all the views oi the drawings bythe same reference characters.

ThisI engine embodies an Youter shell or casing having 'aidrum mounted therein, the said drum being provided -with sliding pistons, and a novel mechanism for delivlering 'live steam to 'the pistons and exhausting the dead'steamtherefrom. The shell 1 is closed by means of the end pieces 2 and' 3 upon which the engine shaft 4 is joumaled. yThe drum 5 is keyed upon or otherwise made rigidwith the shaft 4 and is provided with a pluralityfof radial'oponings 6 within which the pistons 7 arejslidahlymounted. A plurality of depressions 8 are formed in-the periphcry,of the shell l and constitute chambers-within which the livesteam expands and acts upon the lpistons 7. These pistons 7 are normally 'pressed outwardly by means of the springs 9 and the portion of (each of the chambers 8 upon one side of the piston is in conmiunication with an inlet port while the .space yupon the opposite side of the piston conmninientes. with an exhaust. In order that one of the pistons may always be in an operative position, thereby avoid- Specification of Letters Patent. Application and rm 3,1997. soin No. :crt-Q21.`

` ,The 'pri' ary object of the invention is to designan.-

H'OMER H; o F BLooMFInr-JD. INDIANA;

ROTA'RYENGINE'.

Patentes oct. 22,1997; I

centers, there are preferably a greater number of pistons? carried by the drum than chambers 8 in the shell, and in the present instance our pistons and 55 three chambers are provided. A spring pressed-partil tion 10 is mounted upon theshell l'between 'each pair -oi the chambers 8 and normally bearsvagainst thepe.-l

ripheryof the d rum 5 Boas to prevent the steam from passing from one chamber to the next adjacent cham- 60 berl i if A A pair of recesses 1 1' and 12 is formed inthe between each of the p istos, the saidrecesses being. i

spaced radially from each other, and .theseveralinner recesses 12 beingarranged in one'concentric'circle--ti while the outer recesses 11 are arranged vin a second con-` centric circle.' The outer 11,9f each pair coml municates upon one side'withone `of the openings by 'meansof the duct 13 while the inner recess 12 comf municates with the. opening 6 by means of a' similar 70 duct-14. Channelsl 15 and 16 are formed in oppositefaes of the pistons 7, one of th'echannels 15 beingdesigned'toeetablish communication with the inner recess12through the medium of the duct- 14 ivl 1il e vthe opposite channel 75 16 communicates with the outer recess. 11 fthroiigh the duct 13. Owing to the fact that the vchannels 15 and 16 have their mouths located upon opposite sides; oith'e' pistons itwi-ll be readily apparent that when livesteam 1 Ais admitted to the recessesllthe recesses l2 are thrown 8.0 into communication with the exhaust, .the live steam will pass into the chambers 8 through the channels 15 and will expand against one sident the .pistons-7 while r the dead steam upon the opposite side of the pistons `will pass into the exhaust through the channels 16. By 85 reversing this condition and usingthe outer recesses 11 as exhausts and delivering live steam to the inner recesses it will be readily apparent that the drum will he caused to rotate in the opposite direction.

lhe end 3 of the shell 1 is in the nature gf a valve 970,

ing and is shown as comprising the t w o sections l 7. and 18 in closing a steam space 1 9 to which theeteam or other fluid utilized for motive power is admitted through the inlet 20. The section 17 o f the valve casingiits closely against one end of the drum 5 so as to close the recesses 95 Il and l2. This section l7 is provided with a plurality of puirs of openings', the inner openings 2l being disposed in a concentric `circle corresponding to the inner i recesses l2 in the drum 5 while the outer lopenings22 are disposed in a second concentric circle correspon I to the outer recesses l l. The central portion of tlition l7 of the valvo'casing is formed with an annularex haust chamber 23 communicating with thelexhaust passage 24 and also provided with a plurality of slots 25,

I there being one of the said slots for each set of openings 5 of the casing while it is held spaced from the section 18 by means of a collar or annular rib 27. A plurality of openings 21,and22 in the 17 of the vnlve casing is formed in thel valve member 26. and radially elongated depressions 29 nre located intermedite of the slots 28. The rotary' movement of the valve 'member 26 is limited by means of o-,lug 30 operating within a cut away portion 31 of the vulveV casing and the said valve member is designed to be operated through the medium 'of a. rod 32 passingthrough a suitable stuiing box 33 and loosely connected to the said Avalve member by any suitable means, although it is preferred that the inner end oi therod 32 be formed with a laternlly elongated eye loosely receiving'a stud 34 upon the valve 26V.

I, The openings 28 and depressions 29 in the valve member are so arranged that when the valve has been moved to one of `its limits the openings 28 communicate with the inner openings 21 sind the depressions 29 communicate with the outer openings 22, while this condition is exactly reversed'nt the opposite limit oi `the movement of the valve member. It may be here mentioned that the depressions 29 are nl wziysincommunicetion with the annular exhaust chamber 23 through the medium of their respective slots 25- end serve to receive the exi 8:0 haust from either the openings 2O or the openings 22 according to the position of the valve. From the foregoing description it will be readily apparent that when the valve member 26 is `in such a'position thatthe outer openings 22 oi the section 17 oi the 85 valve casing receive live steo'm through the 'openings 28 and the inner openings 21 communicate with 'the exhaust, the said live steam will be delivered into the outer-recesses 11 ofthe drum 5 and will pass through the ducts 13 and channels 15 so :is to expand against one 40 side of the pistons 7', the dead steam upon the opposite side ofthe said. pistons being exhausted through the inner recesses 12 ond depressions i8 in the volvo member. -Upon moving the valve to its opposite position the in# 'ner recesses l2 in the drum receive live stcmn through the. openings 28 while thc outer recesses ilV communicote with the exhoustthrough the depressions 29, und

the motion of the drum is reversed in direction.

Having thus described the invention, Whitt is claimed asnewis: i i. A' rotary engine comprising n sliding piston serving ns n menus for delivering the live steam und cxhnnstlng .the dead steam, f 2. A rotor; engine comprising n sliding piston provided wlthpussuges for dclivering thc live stcnni und cxhuusring the dead steam.

3. A rotary engine comprising a shell, n drum mounted within the shell und provided with lnlct und cxhuust recesses, a movable piston rurrlcd by the drumfundp'o-AA vided \vith"pussngcs communicatingrespectively with the 60 said recesses.: 4

4. Azroizu'y ciginecomprlsing u shell,` o. drum mounted lvlthln the sin-Il, :i'piurullty of sliding piston. carried b v the. drum, ilursald drum being provided inte-'mediate of ouch pull: of ndi-leent pistons' with un cxhnusl rcccss und un inlet recess and the pistons being provided uponoppw slots or steam openings 28cdrresponding to the pairs of' site sides with passages one of which communicates with the exhaust recess upon one side thereof while the opposite passage communicates with the inlct recess upon the opposite side, und menn's for regulating the dellve'ry of steam to the engine.

5. A rotary engine comprising u shell having 'a plurality rotatably mounted within the shell, spring pressed portitions carried by the shell intermediate of 'the chambers, sliding pistons` mounted upon the drum, the said drum being provided with a set ot inlet recesses and n set ofexhaust recesses and the pistons beingprovlded up'on one side with n'pussage designed to communicate with the inlet recess, and means for regulating-the delivery of steam to theengine` 6. A rotary engine comprising n shell, a drum mounted within 4the shell and provided with recesses spaced radially from-each other, n reversible valve (or delivering live steam to one ofthe reesses and'csrrying away' exhaust from the opposite recess, movable p lstons,.c arrled by the drum, und means for utilizing live steam from either of the recesses in connection with the 'pistons 'and delivering' the desd steam to the opposite recess.

7. A rotary engine comprising a'shell,.a. drum mounted within thershell, pistons carrledby thedrum, 'n valve recesses spnccd radially ,trom each other and the lvalve mouiited within' the casing for 'throwlngclther set of openings into 'communication with the exhaust and the opposite set of openings into communication with the either o 't the recesses in connection' with the pistons.

' mounted within the shell, pistons en rried by the drum, volve casing applied to theI shell, the said. drum being with two sets of corresponding' openings, a rotary valve member `mounted within. the vulve casing and providedy with means for throwing either sei: of openingsdnto' communication with the exhaust and the opposite set into communication with the steam inlet. nndmcans for utiliz-2 lng the steam within either set of recesses in the drum in connectionwlth the pistons.

D.. roinry cugino comprising u sllcil` n 'drum rotatably mounted within the shell, pistons carried by vthe drum. n vulve casing uppllcd lo thesiiell, the sold drnlu bolug provided "itll two Sts of recesses und tile vnlvocuslng with two sets fot corrcsimndlng olnnlngs, menus for utilizing ythe steunrfrom either set o! rc1-isses inVA connection with the pistons. und u rotary valve mcmbcr mounted within the valve cnslng und provided with ownlngs communicating with the stcum inlet und depressions' conrmunicntlng with the exhaust, the said vulve member being designed to [loihovcd to throw the openings ihercin lni'o rcglstry with either sct of the before mcntloncd openings ln the vulve cus-lng und the remaining set into registry with the dcprcssinn's. i,

vided with un inlet #ei-mis und nn'exlmust recess. :l sliding piston mounted upon` the drum und provided upon opposite sides with passages communicating respectively with the inici. rcccss und the exhaust reccssfnnd mennsfor rcguintlng.r the delivery of sienm-tothe inlet recess und the Aexhaust: of the steam trom the exhaust recess. l 11. A rotary-engine comprising n shell, n drum mounted within the-shell, a valve cnslngappiied to the shell undp formed in two sections, one of the sections being' formed with two sets ot openings andnlso with 'lm exhnust "'ciuimber provided with o slotfor each set of gapenlnm, moons (ol-.utilizing live steam from either set ot'openings to drive `the drlun. and 'n.'rotary vulve' member mounted dcprcsslons opcrntlng to`tbrow ciliicr scr of. openings in the valvecn'sing into :.ommunicntion with linnstcnm-iniet mentioned exlmust chamber.

gasingn'pplied to the shell, the drum being provided with 1 formed with two sets oi' recesses and the valv'e casing" und thc opposite sot intocommunication willi ib" liclorc `oi' chambers .formed in the periphery thereof, a drum casing being provided with corresponding openings, afvalve l steam inlet, und means for utilizing the live steam within ,8..A 'rotary engine comprising n shell. a rotary drum A loo . .10. A rotary crurlne'lcomprising: u rcvolublc drum pro- 'i iso within the vulve cusing und provided willi openings pnd wtli f "fwo "sts of openings and-'18.150 with '3m xijaust In testimony-whevreotl afx nxsignaure in p resen 1 c'ljmnberA providedwwith slot' for each setl of openings, of two witnesses." 1I."

a 'rotary valvenember. mounted within the yah'e 3 Y musingA and provldd-fwith ".glternate openings nud depres- Witnesses: 

